Best scores, XP and category breakdown — private to your browser
Everything you have played, with your best score for each game, your total XP and a breakdown by category. It is stored in your browser and visible only to you — there is no account and nothing is sent to us.
Your trend, not your best. A single best run is dominated by luck, mood and how warmed up you were. A rolling average over five runs tells you something real.
Your weakest category. The breakdown exists so you can see which of the thirteen you have been avoiding, which is usually the one worth a week of attention.
Consistency. Playing six days at five minutes beats one day at thirty for every task here, and the games-played count shows you honestly which pattern you are in.
Reaction and timing scores depend heavily on your hardware. A phone and a desktop monitor will produce noticeably different numbers for the same person, so compare runs made on the same device.
Memory span scores depend on presentation speed, which is why a number from another site means very little next to one from here.
Yes. Scores are stored in your own browser, not on our servers. We cannot see them.
Local storage is per-browser and per-device. Each browser keeps its own history and they do not sync.
Not for reaction, timing or memory-span games — hardware and presentation speed move those enough to make cross-device comparison meaningless. Compare against your own history.
Clearing the site's data in your browser settings removes everything and starts you fresh.